package Servicios;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class GestorDeRequerimientosAcademicos extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String peticion = request.getParameter("peticion");
        if(peticion.equals(REGISTRAR_REQUERIMIENTO)){            
                registrarRequerimientoAcademico(request,response);
        }
        else if(peticion.equals(MODIFICAR_REQUERIMIENTO)){
                modificarRequerimientoAcademico(request,response);
        }
        else if (peticion.equals(ELIMINAR_REQUERIMIENTO)){
                eliminarRequerimientoAcademico(request,response);
        }
        else {
            muestraErrorOpcionInvalida(request,response);            
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
    
    private final String REGISTRAR_REQUERIMIENTO = "registrareq";
    private final String MODIFICAR_REQUERIMIENTO = "modireq";
    private final String ELIMINAR_REQUERIMIENTO = "eliminareq";

    private void registrarRequerimientoAcademico(HttpServletRequest request, HttpServletResponse response) {
        throw new UnsupportedOperationException("Not yet implemented");
    }

    private void modificarRequerimientoAcademico(HttpServletRequest request, HttpServletResponse response) {
        throw new UnsupportedOperationException("Not yet implemented");
    }

    private void eliminarRequerimientoAcademico(HttpServletRequest request, HttpServletResponse response) {
        throw new UnsupportedOperationException("Not yet implemented");
    }

    private void muestraErrorOpcionInvalida(HttpServletRequest request, HttpServletResponse response) {
        PrintWriter out = null;
        try {
            out = response.getWriter();
            out.println("La Opción solicitada no es reconocida por el sistema.");
        } catch (IOException ex) {
            Logger.getLogger(GestorDeRequerimientosAcademicos.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            out.close();
        }
    }
}
